Clean up API build (#572)

* Clean up API build,
integrate activation 2.1.0-RC1,
update GH action

Signed-off-by: Lukas Jungmann <lukas.jungmann@oracle.com>

.github/workflows/maven.yml

@@ -10,7 +10,7 @@
 # SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 #
 
-name: Jakarta Mail CI
+name: Jakarta Mail API CI
 
 on:
   pull_request:
@@ -23,7 +23,7 @@ jobs:
 
     strategy:
       matrix:
-        java_version: [ 11, 16, 17-ea ]
+        java_version: [ 11, 17-ea ]
 
     steps:
     - name: Checkout for build
@@ -33,5 +33,13 @@ jobs:
       with:
         distribution: 'zulu'
         java-version: ${{ matrix.java_version }}
+    - name: Cache local Maven repository
+      uses: actions/cache@v2
+      with:
+        path: ~/.m2
+        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+        restore-keys: ${{ runner.os }}-m2
     - name: Verify
-      run: bash travis.sh
+      run: |
+        cd api
+        mvn -B -U -C -V clean verify org.glassfish.copyright:glassfish-copyright-maven-plugin:check -Poss-release,staging -Dgpg.skip=true

.gitignore

@@ -1,3 +1,4 @@
+.idea/
 target/
 */target/
 nbproject/private/